ADVrider

Go Back   ADVrider > Bikes > Thumpers
User Name
Password
Register Inmates Photos Site Rules Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
Old 12-27-2012, 11:41 AM   #50626
Spud Rider
Beastly Adventurer
 
Spud Rider's Avatar
 
Joined: Jun 2008
Location: Idaho
Oddometer: 3,677
Quote:
Originally Posted by Sierra Thumper View Post
I'm thinking of possibly sticking an aftermarket header on my xrl to go with my big gun muffler and Daves mods/desnorkeled/desmogged/uni filter. I live and ride at 5000ft and up. I'm currently running a 58 pilot and 155 main jet, and the bike runs great. Plug color is good, maybe slightly rich with a dark tan/light chocolate color.
I'm wondering if I could just stick the header on, or would it make a big enough difference I'd need to jet up some more? Thanks in advance for any and all feedback
I ride at elevations from 4,600-9,200 feet above sea level. Here's my bike's configuration.

Dave's carburetor modifications
Airbox snorkel removed
Uni air filter
No-Toil Evolution air filter oil
FMF Hi-Flo Exhaust Header
Stock muffler
Pilot Jet: size 55
Main Jet: size 155

My bike's configuration is similar to yours. Also, the altitudes at which I ride are very similar to yours. I'm pleased to report my bike starts and runs superbly at all elevations.

I don't think installing an aftermarket exhaust header will make much difference with your jetting. Install the header and see how things work out. If necessary, any tweaking you might need to do with the carburetor jets will be minor.

Spud
__________________
2005 XR650L: Shorai Battery Relocation, Spud Oil Cooler, XR650R C/S Sprocket, Reinforced Subframe, Chain Slipper Roller, Performance Design Lowering Link, Baja Designs Headlight, FMF Hi-Flo Header, ManRacks SD Rack, ManRacks Front Fender Farkle, CST Surge I Front Tire, D952 Rear Tire, Tusk D-Flex Handguards, Uni Air Filter, No-Toil Evolution air filter oil
Spud Rider is offline   Reply With Quote
Old 12-27-2012, 12:20 PM   #50627
ONandOFF
-ROAD-
 
ONandOFF's Avatar
 
Joined: Aug 2009
Location: Shenandoah Valley riding wonderland
Oddometer: 5,326
Quote:
Originally Posted by MentalGuru View Post
...



That's the coolest looking fork mod I've seen yet!
__________________
Let's ride!!! - No offense, but there've been a lot of people over time who were just as sure, yet got it wrong. - Una necedad, aunque la repitan millones de bocas, no deja de ser una necedad. - "you know that I could have me a million more friends and all I'd have to lose is my point of view" (Prine)
ONandOFF is offline   Reply With Quote
Old 12-27-2012, 01:31 PM   #50628
RZRob
Beastly Adventurer
 
RZRob's Avatar
 
Joined: Dec 2008
Location: Anaheim Hills, CA
Oddometer: 1,346
Quote:
Originally Posted by Gone14s View Post
I put a spit fire windscreen on my bike. Made a world of difference when riding in the winter. Needless to say it does not look bad and is a good fit.
I put a similar windscreen on mine (not tinted though) and loved it in terms of riding and asthetics, however I would smack my head/helmet on it occasionally when trying to seriously womp, then one good wipe-out and that was all she wrote.

RZ Rob



RZRob is offline   Reply With Quote
Old 12-27-2012, 01:32 PM   #50629
Schultz!
Recovering Lurker
 
Schultz!'s Avatar
 
Joined: Nov 2012
Location: Warren Michigan
Oddometer: 80
Quote:
Originally Posted by ONandOFF View Post
That's the coolest looking fork mod I've seen yet!
Reminds me of the wife using the garbage disposal again .......
__________________
lots of dismantled parts to a 2007 XR650L
Schultz! is offline   Reply With Quote
Old 12-27-2012, 01:53 PM   #50630
mcma111
Beastly Adventurer
 
mcma111's Avatar
 
Joined: Jul 2007
Location: San Francisco,Ca.
Oddometer: 11,200
Quote:
Originally Posted by Sierra Thumper View Post
I'm thinking of possibly sticking an aftermarket header on my xrl to go with my big gun muffler and Daves mods/desnorkeled/desmogged/uni filter. I live and ride at 5000ft and up. I'm currently running a 58 pilot and 155 main jet, and the bike runs great. Plug color is good, maybe slightly rich with a dark tan/light chocolate color.
I'm wondering if I could just stick the header on, or would it make a big enough difference I'd need to jet up some more? Thanks in advance for any and all feedback

It depends on which header you get. If you get the FMF then there is no difference as the FMF and OE headers are the same diameter IIRC. Now if tyou get a XR's Only header then that header has a bigger diameter tubing. Unless you have changed the piston to a higher compression your not going to get or feel any difference. Actually with a big tube header and a OE motor you may lose performance. It has to do with tube diameter and exhaust speed.
__________________
Steve in SF

BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
mcma111 is offline   Reply With Quote
Old 12-27-2012, 02:09 PM   #50631
mendoteach
Beastly Adventurer
 
mendoteach's Avatar
 
Joined: Apr 2007
Location: Mendocino, NorCal
Oddometer: 1,427
Some of you may be following flyingwobat, mcma111, and my trials to put on an HSR45 carb. CW thinks that these are the best carbs for these bikes once they have been modded a bit. The HSR42 is better suited if you don't have really large displacement, big cams and or head work. Anyway, a few weeks ago Steve sent me an ebay to link to an outfit called motoman (their phone number is in the listing below) and they had them on sale for $279 shipped. That's crazy cheap. Of course they are no longer on sale and have them listed at $3,333 or something. I called and asked what was up. They replied they are currently out of stock it was cheaper for them to keep the listing and change the price to something nobody would pay than to stop the listing and then re-list when they have them. They have some on order and will be in stock in a few weeks for $270 shipped (and that's for the 45, the 42 is likely cheaper). There is one caveat, the carb is about 13mm shorter than the stock carb so CW will have to make you a spacer, which CW is currently making for Steve and me . Here's the link with phone number:

http://www.ebay.com/itm/Mikuni-TM45-...bccd2d&vxp=mtr
mendoteach is offline   Reply With Quote
Old 12-27-2012, 02:12 PM   #50632
mcma111
Beastly Adventurer
 
mcma111's Avatar
 
Joined: Jul 2007
Location: San Francisco,Ca.
Oddometer: 11,200
Had to let the cat out of the bag eh??
__________________
Steve in SF

BMW's
58 R26
79 R100s
91 R100gs

87 Harley FXRS-SP ~ 06 KTM 625 SMC ~ 72 Honda CB750/915cc ~ 92 XR600/654cc ~ 95 XR650l/675cc ~ 03 CRF450r ~ 05 CRF450x ~ 02 XR650l/675cc ~ 86 YZ490 ~ 93 YZ80 ~ 93 XR650l Project
mcma111 is offline   Reply With Quote
Old 12-27-2012, 02:23 PM   #50633
sc-razor
Beastly Adventurer
 
sc-razor's Avatar
 
Joined: May 2008
Location: NW Arkansas
Oddometer: 3,746
Quote:
Originally Posted by mcma111 View Post
Had to let the cat out of the bag eh??
..........and, right click-save
__________________
2009 XR650L

Steve
sc-razor is offline   Reply With Quote
Old 12-27-2012, 02:25 PM   #50634
mendoteach
Beastly Adventurer
 
mendoteach's Avatar
 
Joined: Apr 2007
Location: Mendocino, NorCal
Oddometer: 1,427
We shouldn't hog all the good deals. That just ain't right. Besides with me posting this we may up our tuner base by two. Wattner may chime in and tell us what carb he has on his uber L.
mendoteach is offline   Reply With Quote
Old 12-27-2012, 02:41 PM   #50635
Mossy-Back
Wet-Sider
 
Mossy-Back's Avatar
 
Joined: Jun 2012
Location: Corvallis, OR
Oddometer: 1,527
Quote:
Originally Posted by Spud Rider View Post
I was going to return an item once, but I changed my mind. I didn't have any problems getting authorization for a refund; Rocky Mountain ATV/MC has excellent customer service. Just give them a phone call, and I'm sure they will take good care of you.

Spud
Thanks again Spud. She bought them a few weeks ago and just gave them to me for Christmas, so I hope they will understand that they were a gift and I didn't get to try them out when she bought them. I'll give them a call.

Quote:
Originally Posted by RideAbout View Post
Love mine.... Mine are over Cycra's and the other bike has Acerbis Hand-guards. They work well with both... with slight modifications.


I have MSR handguards on mine, and they seem to stick out too far from the bars, and be too tall to fit inside well. They wouldn't even cover my hands at all, just barely come back to the bar.
__________________
Evan
2013 Husqvarna Strada
'93 XR650L (Gone, but missed)
Ooh-Rah! Once a Marine, always a Marine!
Quote:
Originally Posted by kenny61 View Post
figures...my stud was rusty I played with my nuts a little and it cranked right over
Mossy-Back is offline   Reply With Quote
Old 12-27-2012, 03:44 PM   #50636
katbeanz
earthbound misfit, I
 
katbeanz's Avatar
 
Joined: Feb 2005
Location: Kansas City
Oddometer: 7,424
Quote:
Originally Posted by mcma111 View Post
Had to let the cat out of the bag eh??
That's the same outfit I got mine from, guy finally got my spacers made but it's not a smooth transition. A square edge was left, maybe 1/16" so not a full 45mm.
__________________
katbeanz is offline   Reply With Quote
Old 12-27-2012, 04:13 PM   #50637
AZ TOM
Beastly Adventurer
 
Joined: Oct 2008
Location: Prescott AZ
Oddometer: 3,662
Quote:
Originally Posted by mcma111 View Post
Had to let the cat out of the bag eh??
No animal cruelty allowed on this thread!
AZ TOM is offline   Reply With Quote
Old 12-27-2012, 04:57 PM   #50638
mendoteach
Beastly Adventurer
 
mendoteach's Avatar
 
Joined: Apr 2007
Location: Mendocino, NorCal
Oddometer: 1,427
Quote:
Originally Posted by katbeanz View Post
That's the same outfit I got mine from, guy finally got my spacers made but it's not a smooth transition. A square edge was left, maybe 1/16" so not a full 45mm.
That's not good. Time to get out the die grinder and start grinding.
mendoteach is offline   Reply With Quote
Old 12-27-2012, 07:50 PM   #50639
ThumpnRed
Pig Wrangler
 
ThumpnRed's Avatar
 
Joined: Aug 2009
Location: Eye Duh Hoe
Oddometer: 2,399
Quote:
Originally Posted by mendoteach View Post
That's not good. Time to get out the die grinder and start grinding.
Anything worth doing should require some love with a dremel.
__________________
Quote:
Originally Posted by Cigar Mike :With plastic buy two.
'93 XR650L A few stock parts left...
ThumpnRed is offline   Reply With Quote
Old 12-27-2012, 07:58 PM   #50640
mendoteach
Beastly Adventurer
 
mendoteach's Avatar
 
Joined: Apr 2007
Location: Mendocino, NorCal
Oddometer: 1,427
Quote:
Originally Posted by ThumpnRed View Post
Anything worth doing should require some love with a dremel.
true, true, true.
mendoteach is offline   Reply With Quote
Reply

Share

Thread Tools Search this Thread
Search this Thread:

.
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


Times are GMT -7.   It's 09:38 AM.


Powered by vBulletin® Version 3.8.5
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ADVrider 2011-2014